I got this nudi in my mantis tank, the little guy piggy backs on hermits and even the cucumber. Was funny how he tried to get off as the hermit wasn't standing still - took him a while - sorry for pics, tank is round and phone is flat

Hmmm...I need to get up there

if this damn thing will just go a bit closer...

Gotcha!

at last....

and here he is riding on the cucumber

Some tips for newbies:1.Evaporation top-ups are done with RO water only, not saltwater2.Please don't keep tangs in a nano - they need lots of swimming space3.Anemones need mature tanks to thrive and clown fish don't need anemones to survive4. "Dilution is the solution to polution" - Anthony Calfo

What's up with nudi's, cucumbers and this hermit? Just saw another "baby" nudi or cucumber riding on the hermit...lol

Check it out, two fingers in the mouth

Yum yum, finger licken good

Some tips for newbies:1.Evaporation top-ups are done with RO water only, not saltwater2.Please don't keep tangs in a nano - they need lots of swimming space3.Anemones need mature tanks to thrive and clown fish don't need anemones to survive4. "Dilution is the solution to polution" - Anthony Calfo

I started a thread a day or so ago about a friend of mine who's sister in law brought him stuff from the Northen Natal coast. This nudi was in one of the shells the kids picked up.
After removing all the empty shells from the buckets and placed them on the ground, I saw something moved. It was this nudi.
It is obvious he is very hardy as not only did he travel in a small bucket a good few hrs, the temp of the bucket water was also 10-15 deg and he was out the water for a couple of min as we didn't see him. Let's just hope there will be food for him to chow in my mantis tank. I know there are a lot of sponges and bubble algae treats, but the question is - is that what he wants?

Some tips for newbies:1.Evaporation top-ups are done with RO water only, not saltwater2.Please don't keep tangs in a nano - they need lots of swimming space3.Anemones need mature tanks to thrive and clown fish don't need anemones to survive4. "Dilution is the solution to polution" - Anthony Calfo

funny stuff.
I took a photo recently of a similar species - Blue speckled dorid:
I love the patterns on the body, they look like autumn leaves.
Yours is called the Contoured dorid.
Both believed to feed on sponges.